Hi, You need to send a warning letter to the absconded employee stating that "As per our attendance records, you are not reporting to the office with effect from ___ without any information/justification to your superior. You have grossly shirked your responsibilities by staying away from duty without sufficient cause, reason, or information, thereby acting in a manner prejudicial to the interest of the organization. Upon scrutiny of the inventory register maintained by you, it is observed that there seems to be a lot of mismatch between actual stock and the inventory register. You are hereby directed to report to the office and hand over everything properly; failing which severe disciplinary action will be initiated against you."
You may send the warning letter through RPAD and then ascertain the actual stock vis-a-vis the inventory register. If the mismatch is very significant, and if the cost involved is substantial, you can inform the employee that the company might lodge a police complaint as well.